I’m pretty sure she was said to have slept with every leading man of hers except Jimmy Stewart, who remained faithful to his wife.
Wife told me she was supposed to star in “North by Northwest” but Prince Rainier refused to let her. Guess he knew about her predilections for screwing everyone.
A search found this little snip:
In Grace’s case her passionate nature went against the Fifties notion that good girls didn’t until they got married. Grace, however, did and often. It was this contrast that fascinated filmmakers including Hitchcock. By this time Kelly was clearly far from innocent.
Given her extraordinary beauty , she was rarely without suitors. Quite how far she indulged might never be known, though there is ample evidence to suggest that Spoto is being economical with the truth.